Sanding nozzle for wheeled vehicles



May 1, 1956 w. B. DEAN SANDING NOZZLE FOR WHEELED VEHICLES Filed NOV.19, 1952 INVENTOR Wal fer B. Dea n ATTORNEY normally is mounted on theframe of the car.

United States Patent Office 2,743,952 Patented May 1, 1956 SANDINGNOZZLE FOR WHEELED VEHICLES Walter B. Dean, Narberth, Pa., assignor toThe Budd Company, Philadelphia, Pa., a corporation of Pennsyl- VaniaApplication November 19, 1952, Serial No. 321,464

3 Claims. (Cl. 291-46) This invention relates to sanding nozzles forwheeled vehicles and has for an object the provision of improvements inthis art.

One of the particular objects is to provide a sanding nozzle ofsuflicient length, flexibility, expansibility, and vibratory movement toavoid clogging, as by ice or packing of sand all the way from the endback to the sand trap to which the final sand dispensing tube isattached.

Another object is to provide a mounting for the sanding nozzle whichimparts to it suflicient vibration to aid in breaking up any congestionof sand which tends to form in it.

Another object is to provide an improved nozzle holding device whichprovides for quick securement and release, which will not work loose,and which will not constrict the expansion of the nozzle to anyobjectional extent.

In Patents Numbers 2,196,977 and 2,196,978 there is disclosed anextensible sand nozzle which, when clogged, expands with air pressure tocause the obstruction to be removed. These nozzles have worked well fortheir intended purpose but in many cases, especially in cold wet.weather, the pipe between the short nozzle and the sand trap clogs and,since it does not expand like the rubber nozzle, the obstruction remainsuntil removed by heat or hand hammering after the vehicle stops, neitherof any value during the run when sand is needed but unavailable.

Further, in the former system, the nozzle itself, being mounted on themetal pipe which was carried by the car body frame, had considerableswinging movement so that sand might not fall on the rail Where needed.Moreover, the nozzle did not have enough pounding vibration duringtravel to avoid large obstructions in very cold wet weather, whichobstructions could not readily be removed by air pressure alone.

According to the present invention, these difficulties are overcome byproviding a flexible expansible nozzle of such length as to extend backto the sand trap and by providing a support for it near its end on theWheel bearing support in order to direct sand accurately upon the trackand to provide suflicient sharp vibration to prevent the formation oflarge obstructions.

An exemplary embodiment of the invention will be described in connectionwith the drawings of an illustrative embodiment thereof, wherein:

Fig. 1 is a side elevation of a wheel and sanding assembly of a wheeltruck;

Fig. 2 is an inverted plan view of parts shown in Fig. 1;

Fig. 3 a side view, partly in section, on the line 3-3 of Fig. 2; and

Fig. 4 is a section taken on the line 4-4' of Fig. 1.

As shown in Fig. 1, each wheel is provided with a sanding nozzle 11connected to a sand trap 12 which The general assembly is shown inPatents Numbers 2,196,977 and 2,196,978, referred to above.

The nozzle 11 is made of elastic, flexible, distensible material, suchas rubber, which will expand with air pressure to eliminate anycongestion which may tend to form. The flexible nozzle extends all theway back to the sand trap where the sand is fully protected frommoisture, hence the full length which might become clogged is expansibleto eliminate congestion.

As a further aid in breaking up congestion, the nozzle 11 is held nearthe end by a mounting 13 which is secured directly on the wheel journalbox 14 which receives constant sharp vibration from travel of the wheelon the rail whereby sand congestion is minimized. Some adjustment isprovided at the joint where the mounting is secured to the journal box14 by bolts 15. By this arrangement the nozzle will be accuratelylocated and firmly held relative to the contact point of the wheel treadon the rail.

The mounting 13 terminates in a retainer 16 which is formed as a hookinto which the nozzle may be slipped from the side. The nozzle isretained by bolts 17 which are inserted and secured after the nozzle hasbeen inserted.

The nozzle is not tightly held in the retainer, hence is free to expandtherein when necessary to break up congestion. In order to preventlongitudinal movement of the nozzle in the retainer the nozzle isprovided with an integral circumferential rib 18 which fits in a slit 19formed in the retainer, the rib sliding into the slit as the nozzle isinserted in the retainer.

It is thus seen that the invention provides a dependable and eflectivesanding nozzle and mounting therefor which will inhibit obstructionunder very severe operating conditions.

While one embodiment has been described by way of illustration, it is tobe understood that there may be other embodiments within the generalscope of the invention.

What is claimed is:

1. Sanding means for a wheeled vehicle provided with a sand trap on thebody for supplying said with air under pressure and a wheel supportbearing structure, in combination, a journal box supporting a wheelaxle, a flexible expansible nozzle connected to said sand trap, and asupport carried by said journal box for said nozzle near the end of thenozzle at a wheel tread to keep the end of the nozzle accurately inproper position and to produce sufficient vibration to prevent theformation of large obstructions in the nozzle, the support looselyembracing the nozzle to allow flexing and distension of the nozzle tobreak up sand congestion in the nozzle.

2. Sanding means for a wheeled vehicle provided with a sand trap on thebody for supplying sand and air under pressure and a wheel bearing boxsupport, in combination, a flexible expansible sanding nozzle formingthe end of a line from said sand trap, an integral enlargement near theend of said nozzle, and a bracket carried by the wheel bearing boxsupport having a loose clasp retainer for said nozzle embracing saidenlargement to allow expansion and vibratory movement of the nozzlewithout axial displacement relative to said clasp support.

3. Sanding means for a wheeled vehicle provided with a sand trap on thebody for supplying sand and air under pressure and a wheel bearing boxsupport, in combination, a flexible expansible sanding nozzle extendingfrom the sand trap to a point near the bottom of the Wheel, acircumferential rib on the nozzle near the end, a bracket secured to thewheel bearing box, a retainer of book form receiving the end of thenozzle from one side and having a slit receiving said rib, and bolts inthe hook retainer 3 4 behind the nozzle to hold it loosely in place, thenozzle 930,008 White Aug. 3, 1909 being expansible in the retainer andbeing held by the rib 946,346 Gibbs J an. 11, 1910 against longitudinalmovement. 1,403,878 Swearingen Jan. 17, 1922 2,196,977 1 Campbell et alApr. 16, 1940 References Cited in the file of this patent 5 2,304, 73Blomberg De 15, 1942 UNITED STATES PATENTS 2,352,252 Canetta June 27,1944 673,316 Charles APR 30 1901 2,488,900 Deagan 9

